<template>
  <div id="app">
    <nav v-if="flag">
      <router-link to="/">首页</router-link> |
      <router-link to="/about">购物车</router-link>
    </nav>
    <router-view/>
  </div>
</template>
<script>

export default {
    data() {
      return {
        flag: true,
      };
    },
    watch:{
      $route:function(n){
        console.log(n)
        if(n.path=="/info"){
          this.flag = false;
        }else{
          this.flag =true;
        }
      }
    }

}
</script>




<style>


nav a {
  font-weight: bold;
  color: #2c3e50;
}

nav a.router-link-exact-active {
  color: #42b983;
}
</style>
